- Emerson Remote Terminal Unit Instruction Manual

2-32 / Installation & Operation CI-ControlWave Express
2.4.2.2 Using HyperTerminal to Upgrade ControlWave Express Firmware
A half-duplex null modem cable (see Figure 2-5) must be connected to COM1 of the
ControlWave Express and to any RS-232 port on the associated PC. The PC’s RS-232 port
used for this purpose must be set to run at 115.2 Kbaud. ControlWave Express CPU/System
Controller Board Switch SW1, position, 3 must be set to the ON position.
1. If not already running, apply power to the associated PC.
2. Start the HyperTerminal program on the PC. Note: HyperTerminal is a Windows utility
program. In Windows XP, you can start HyperTerminal by clicking on Start Æ Programs
Æ Accessories Æ Communications Æ HyperTerminal. If using HyperTerminal for the
first time, set the communications properties (for the PC Port being utilized) via the
Properties Menu as follows: Bits per second: = 115200, Data bits: = 8, Parity: = None, Stop
bits: = 1, and Flow control: = None and then click OK.
3. Set the CPU/System Controller Board’s Mode Switch (SW1) for ‘Recovery Mode,’ i.e., set
CPU/System Controller Board Switch SW1-3 to the ON position.
4. Apply power to the ControlWave Express. The resident BIOS will initialize and test the
hardware, this process is referred to as POST (Power On Self Test).
Unless there is a problem System Status Code RECOV (Waiting in Recovery Mode) will
be posted to the Status LEDs on the CPU’s LED Board and to the optional LCD Display (if
present). Detection of a fault during POST will be posted on the LCD Display (if present)
and the Status LEDs on the CPU’s LED Board (see Table 2-12 and Figures 2-26 and 2-27).
Figure 2-22 - HyperTerminal Recovery Mode Menu
From the HyperTerminal Recovery Mode menu (Figure 2-22), press the ‘F’ key to enter
FLASH download. A message will be displayed warning that the FLASH is about to be
erased; press the ‘Y’ key at the prompt. The screen will display dots as the flash devices are
being erased; this could take a few minutes.
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